CVE-2021-23663

Prototype Pollution

All versions of package sey are vulnerable to Prototype Pollution via the deepmerge() function.

Affected

sey

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 SNYK

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.21% chance of exploitation in the next 30 days, 68th percentile

Published

2021-12-10

Updated

2024-09-16

Proof-of-concept exploits (1)

• https://snyk.io/vuln/SNYK-JS-SEY-1727592

Security advisories

• advisories/GHSA-wjpc-cgvw-xx23

References

• CVE Record
• NVD entry